In the igneous rock formation, CBIL shows fractures, vugs and weathered residual gravel clearly.
在火成岩地层中，它清晰地显示裂缝、孔洞以及风化残积的砾石。
Igneous rock stratum in Daqing is the world-class difficult drilling formation. The rock drilled in the stratum have high drillability value and poor adaptability with drill bit.
大庆油田火成岩地层是世界级难钻地层，钻进过程中该地层岩石表现为可钻性值极高，地层与钻头适应性差。
The models for igneous gas reservoir formation mainly include two types: Transported by the faults near source rock type and Transported by the faults far from source rock type.
其成藏模式主要有近源断裂输导火山岩成藏和远源断裂输导火山岩成藏两种。
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